Check SPF, DKIM, and DMARC records for any domain. Get a security grade with detailed analysis and recommendations.
What We Check:
- SPF (Sender Policy Framework): Verifies which mail servers are authorized to send email for your domain
- DKIM (DomainKeys Identified Mail): Checks for digital signature records across common selectors (Microsoft 365, Google Workspace, and more)
- DMARC (Domain-based Message Authentication): Analyzes your DMARC policy, reporting configuration, and subdomain policies
- MX Records: Identifies your email provider and mail exchange configuration
Security Grading
Each domain receives an overall grade (A through F) based on the configuration of all three email authentication protocols. Detailed analysis explains what each record does, whether it's properly configured, and specific recommendations for improvement.
Monitor Email Security Across All Your Clients
This tool checks one domain at a time. Unified DNS provides at-a-glance SPF, DKIM, and DMARC status across every domain you manage. Identify gaps instantly, get alerts when records change, and deploy DMARC policies at scale. Try it free for a month with code FREETRIAL2026 at portal.udns.app.
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